Eye-tracking patterns in schizophrenia. An analysis based on the incidence of saccades
J. P. Mialet and P. Pichot
Saccades occurring when tracking a sine-wave target and when fixating a
stationary target were studied in the following three groups:
schizophrenics, other psychiatric inpatients, and normal controls. The
frequency of saccades when tracking and when fixating was significantly
greater among schizophrenics than among the two comparison groups. The
pattern of occurrence of saccades within cycles of the sine movement was
similar in the three groups; the greatest occurrence was at the highest
target velocity and the lowest occurrence was at reversal points. The data
are interpreted as consistent with the hypothesis of a failure on
inhibiting mechanisms.
